A negatively charged comb is held above a neutral piece of paper without touching it. The paper moves towards the comb. Which explanation is correct?
Protons leave the comb for the paper, giving the whole paper a positive charge.
Charge separates in the paper, giving a nearer positive region and a net attraction.
Electrons leave the paper for the comb, giving the whole paper a positive charge.
Charge separates in the paper, giving a nearer negative region and a net attraction.
91 exam-style questions on Edexcel GCSE Physics 11.1 Charging by friction, covering 11.1.1 Charging insulators by friction, 11.1.2 Forces between charges, 11.1.3 Electrostatic phenomena, and 11.1.4 Earthing and removing charge. Each one has a worked solution and a mark scheme showing where the marks go.